byNASA -- Courtesy of SOHO/LASCO, SOHO/EIT, and SOHO/MDI consortium. SOHO is a project of international cooperation between ESA and NASA.
At 10:40 UTC on September 24, 2001, a large solar flare erupted from the surface of the sun. Pointed almost directly towards the Earth, the flare caused a coronal mass ejection (CME). Coronal mass ejections are composed of fast-moving clouds of ionized gas. These energetic particles can interfere with wireless communications, damage satellites, disrupt the transmission of electricity, and energize the Earth's upper atmosphere, causing auroras. The images above show several views of the solar... Topics: What -- Sun, What -- Earth, What -- FAST, What -- SOHO, What -- Extreme Ultraviolet Imaging... Source: http://earthobservatory.nasa.gov/IOTD/view.php?id=1787
byNASA -- Images courtesy sohowww.nascom.nasa.gov/ Solar & Heliospheric Observatory
A massive solar flare erupted from the surface of the Sun at 9:51 UTC on October 28, 2003. The solar flare persisted for more than an hour, peaking at 11:10 UTC. Associated with the flare was an ejection of a billion tons or more of gas from the Sun's tenuous outer atmosphere, or corona. Both the flare and the coronal mass ejection accelerated electrically charged particles to very high energies and hurled them at near the speed of light directly toward the Earth. It takes light roughly 8... Topics: What -- Sun, What -- Earth, What -- SOHO, What -- Imager, What -- Extreme Ultraviolet Imaging... Source: http://earthobservatory.nasa.gov/IOTD/view.php?id=3912